Title :
A Y-junction optical switch based on field-induced control of refractive index
Author :
Huang, T.C. ; Simonis, G.J. ; Stead, M. ; Leavitt, R.P.
Author_Institution :
US Army Res. Lab., Adelphi, MD, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
A new type of Y-junction optical switch structure based on refractive-index-controllable waveguides is investigated. Switching operation is observed when polarity of the reverse bias applied between the two arms of the Y-branch is alternated. A crosstalk of less than -12 dB is achieved with a transition length of less than 400 mu m at a 1.06- mu m wavelength. An optical switch is realizable with this structure that has small size, large optical bandwidth, and high speed.<>
Keywords :
crosstalk; electro-optical devices; integrated optics; optical communication equipment; optical switches; optical waveguides; refractive index; semiconductor switches; 1.06 micron; 12 dB; 400 micron; IR; Y-branch; Y-junction optical switch; field-induced control; high speed; large optical bandwidth; polarity; refractive index; refractive-index-controllable waveguides; reverse bias; small size; transition length; Delay effects; Electrons; Gallium arsenide; Optical control; Optical crosstalk; Optical refraction; Optical switches; Optical variables control; Photoconductivity; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
